Band-cutter and feeder.



PATENTED NOV. 3, 1903..

.0. W. BROWN.

BAND CUTTER AND FEEDER.

AEPLIGATION FILED OCT. 28. 1962.

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PATENTED NOV. 3, 1903.

0. W. BROWN. BAND CUTTER AND FEEDER.

APPLICATION FILED OUT. 28,. 1902.

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Patented November 3, 19031 PATENT OFFICE.

OSCAR W. BROWN, OF ABILENE, KANSAS.

BAN D-CUTTER AND FEEDER.

SPECIFICATION forming part of Letters Patent No. 743,143, dated November 3, 1903.

Application filed October 28, 1902. Serial No. 129.161. N modelJ To aZZ whom it may concern.-

Be it known that I, OSCAR W. BROWN, a citizen of the United States, and a resident of Abilene, Dickinson county, State of Kansas, have invented certain new and useful Improvements in Band-Gutters and Feeders; and my preferred manner of carrying out the invention is set forth in the following .full, clear, and exact description,terminating with claims particularly specifying the novelty.

This invention relates to threshing machines, and more especially to that class of devices used in connection with the threshing-machine proper which are called bandcutters and feeders, and the objects of the same are to improve the details of construction of such a device in various respects, as will appear more fully hereinafter.

To this end the invention consists in the features covered in the claims hereunto appended, the whole being described in this specification and illustrated in the accompa: nying drawings, wherein-- Figure I is a central vertical section of this machine complete. Fig. 11 is a cross-section ofthe beater. Fig. 111 is an enlarged sectional detail of the clutch used in connection with said beater. Fig. 1V is a detail of the tension device within the clutch. Fig. V is a detail in end View of the support for the divisional board. Fig. VI is a detail of one of the band cutting ,knives and its support. Fig. VII is a view of the lower side of the feed-plate and part of the pan, showing the means for attaching thefeed-plate.

The framework. --The numeral 1 designates the casing usually employed to surround the mechanism which feeds the straw and bundles to the threshing mechanism. In the present instance this casing has a door 2, through which the interior mechanism may be inspected, and it is properlysupported by means not necessary to illustrate. 3 is the cylinder and concave, both being dotted, as

they form no part of the present invention save that they are used in connection therewith. 4 is the carrier, and 5 the hinged feedtable, and (iii; the divisional board sometimes employed in connection therewith. 7 is the beater, and8 is the feed-pan, the latter hung on a link 9 and drivenby a crank-shaft 10,

as is usual. Except as hereinafter specified all these parts are of the ordinary construction and location and perform their wellknown function. They are shown and described herein for the purpose of making up an operative machine; but the claims at the end of the specification set forth the novel features.

The feed.-In the present instance the feedtable 5 is hinged at 11 to the frame of the carrier 4 and is shown partially folded downward; but when it is brought into alinement therewith the table is held in place by the hook 12. At the forward end of the divisional board is a curved arm 18, having an eye 14 engaging a transverse rod 15, mounted on brackets 16 on the casing 1 and held in its adjusted positionby a set-screw 17. The rear end of the divisional board (when the latter is used) rests in a fork 18 in the upper end of. an arm 19, which latter is pivoted at 20 to a bracket 21, supported by a hanger 22 beneath the feed-table. (See Fig. V.) This arm 19 has a disk 23 aroundits pivot provided with notches 24 in its periphery, and a springcatch 25, supported by the bracket 21, is adapted to engage one of said notches and simultaneously a notch 26 in the bracket 21. By this construction the catch may be depressed to disengage the notch 24 and the arm turned down out of the way, as seen in dotted lines in Fig. V, or the arm may be turned upright, as seen in full lines, so that the divisional board 6 will be properly supported along the center of the feed-table 5. To set the divisional board at other points later ally of the table, the set-screw 17 is loosened and the eye 14 adjusted on the rod 15.

The heater. --The beater 7 is preferably constructed with a triangular core, as seen in Fig. I, and three wings or blades 30, secured to the faces thereof and having notched outer edges 31. This beater is, as usual, driven at a high rate of speed, and by preference a clutch is interposed between the shaft 32 and the driving mechanism, so that until a sufficiently high speed is attained the beater will not rotate. In the present instance the other end of the shaft is geared, as at 33, to a driven shaft 34, having sprocket-wheels 35 and 36,

one of which is connected with the knifedrum and the other with the feed-pan, both described below. Thus when the clutch drives the beater the latter sets in motion the other parts of the machine.

The clutch-The clutch which I use, by preference, although not of necessity, is best shown in Fig. III. A rim-wheel 40 is mounted loosely on the shaft 32, and to its spokes are pivoted two weighted levers 41, connected bya rod 42, so as to cause them to move in unison, their weights flying out-ward by centrifugal force as the speed increases. 43 represents shoes mounted on spring-supports 44, which are preferably steel strips secured within the rim 40 and bent so as to hold the shoes normally outward and away from the rim 45 of the inner or second clutch member, and these shoes are connected by links 430 with the levers 41, so that when the latter move outward under centrifugal force the shoes move inward and frictionally engage the inner clutch member 45. In connection with this clutch I use a tension device, (best illustrated in Fig. IV and preferably constructed as follows 50 is a rod extending across within the wheel'4O and threaded for a nut 51. The latter bears against one end of a spring 52 and the opposite end of said spring bears against one end of a casing 53, which moves loosely on the rod: The other end of this casing is pivoted, as at 54, to a movable part of the clutch mechanism, as one of the levers 41. The movements of these levers may therefore be controlled and adjusted to a certain extent by setting the nut 51 on the threaded portion of the rod as desired. I do not limit myself to this form of tension device, however, as it is clear by substituting difierent Weights on the levers or by adjusting these weights to different positions practically the same adjustment could be accomplished.

The band-cutter.-In Fig. V1 is best seen one of the knives which sever the bands on the bundles. These knives are preferably of the shape of equilateral triangles, having two edges 61 serrated and two eyes 62 adjacent their other edge, and 63 is the shank, which is riveted to these eyes and given a quarter-twist in its body, as shown. 631 is the drum of the cutter mounted on the shaft 64,which here has a sprocket-wheel 65, driven by a chain belt 66 from the sprocket 35, although the precise arrangement of belting is im material, and through the rim of this drum are passed bolts or rivets 67, which detachably hold the ends of said shanks in place. I consider this arrangement extremely serviceable, as it permits the removal of any knife for substitutionor repair, and by adjusting the bolts 67 to difierent holes through the rim a greater or less number of knives may be brought into use.

Another band-cutter which may be em ployed will be described in the following paragraph.

The pan.The pan 8 and its supporting and driving mechanism have been described clutch member, 45.

briefly. The crank-shaft 10 has a sprocket 70, which is connected by a chain belt 71 with the sprocket 36. The pan itself is of the usual construction, preferably having fingers 72 adjacent its delivery end. To this pan at 73 may be hinged a blade or blades 74, having teeth or knives 75 of about the shape shown, and the inner end of this blade may be raised into operative position by a link 76, manipulated by and pivoted to the short arm of an L-shaped lever 77, which is pivoted at its angle to the body of the pan about as shown.

vEither this blade or the blades 60, but preferably both, may be employed, their use depending upon the length and nature of the grain and whether it is tied in bundles or not.

The feed-pZate.An important feature of my invention is illustrated in Fig. VII and its use is to prevent grain, chaff, and dust from escaping from the machine. is a plate or strip of wood mounted on two springsupports 81, shaped about as shown in this view, which are adapted to bear against castings 82, fastened beneath the framework. The front edge of the plate 80 is then pressed inward and dropped behind the front edge of the dust-plate 83, and by these means I close the crack, which is usually open between said dust-plate and the delivery end of the pan.

The various parts of this machine are of the desired sizes, shapes, proportions, and materials, and considerable change in the details may be made without departing from my invention, because the latter consists in the features of construction which go to perfect the whole. It will not be necessary to give an elaborate description of the operation, because the use of the machines of this character is so well known. I might say, however, that'when power is applied to the rim of the wheel 40, which is loose on the shaft 32, and the proper speed of rotation is reached the clutch connects this wheel with the other The beater commences to rotate, and through the sprocket-wheels 35 and 36 and belts 66 and 71 the knife-drum and feed-pan then begin their movements; but when the speed falls sufficiently to permit the clutch to loosen and the beater ceases to revolve these parts connected therewith then .cease their movements until the beater resumes its revolution. The carrier is of course driven by other mechanism not necessary to illustrate in this connection.

What is claimed as new is- 1. A feed-table for threshing-machines and the like, a divisional board, and means for pivotally supporting said board at the inner end of the table; combined with a hanger depending from the outer end of said table, a bracket carried by the hanger and having a notch and a pivot, an arm having a disk notched in its periphery and centrally mounted on said pivot so as to swing in a plane transverse to the length of the table, its upper end being forked to support the divisional board, and a spring-catch mounted on the bracket and engaging the notch in the bracket and also one of the notches in said disk when it alines with that in the bracket.

2. A band-cutter for threshing-machines and the like comprising a drum whose rim is perforated, a series of knives each of the shape of an equilateral triangle having its two outer edges converging and serrated, a shank for each knife having a quarter-twist in its body, one end of the shank being secured along the plain inner edge of the knife and its body projecting in line with the latter, and a bolt passing through'its other end and engaging one of the perforations in said drum.

3. In a feeder for threshing-machines and the like, the combination with the pan and OSCAR W. BROWN.

Witnesses:

C. O. TOWNER, H. A. DYEKMAN. 

